let's check in with cbs news meteorologist andrew kozak. andrew? >> hey, good evening, nancy.going to be busy across the pacific northwest once again this weekend with the atmospheric river once again open for business with heavy rain and snow that continues to come in not even just for the rest of the weekend but into next week, as well. take a look at the water vapor here. darker blues indicate how much moisture. like squeezing out a sponge. this conveyor belt continues inand for that reason flood risk for the bay area, northern california. that scoots a little bit to the north as we head into the day on sunday. 1 to 3 inches of rain to the valley. 4 to 8 inches in the mountains. the highest of high elevations could be dealing with 1 to 2 feet of snow. in the snoeft, nice and mild. comfortable in the midsection of the country. seasonably cool across the east coast for sunday. nancy? >> andrew kozak, thank you. >>> straight ahead on the "cbs weekend news," potomac air disasters mourned by a city steeped in aviation. >>> a hike in the price of eggs isn't going over easy with c

cbs news meteorologist andrew kozak joins us with the forecast. andrew?> yeah, good evening, jericka. the west is bracing for a very busy week ahead. we are tracking several systems coming in across the west coast, moving across the country, and slamming back through the east coast. we're talking heavy rain, blizzard conditions in a couple of spots, and even the possibility for strong storms. it's this atmospheric river once again slamming into the coast. it's like a conveyor belt of moisture, nothing stopping it. by the middle of this week, we could be looking at a lot of heavy rain across california. mud slides could be something we see with over 4 inches of rain inland, snow above 5,000 feet. same time frame but different part of the country. wednesday and thursday, heavy snow across i-70, heavy rain and storms in the south. we could be looking at 4 to 6 inches in the tennessee valley. how much snow could we get in some portions of the country? before all is said and done, we could be looking at 6 to 12 inches of snow, a very busy week ahead. >> andrew